40544505 has 24 divisors (see below), whose sum is σ = 71472960. Its totient is φ = 21255840.

The previous prime is 40544467. The next prime is 40544509. The reversal of 40544505 is 50544504.

It is not a de Polignac number, because 40544505 - 2¹¹ = 40542457 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40544509) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4981 + ... + 10290.

It is an arithmetic number, because the mean of its divisors is an integer number (2978040).

Almost surely, 2^40544505 is an apocalyptic number.

40544505 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40544505 is a deficient number, since it is larger than the sum of its proper divisors (30928455).

40544505 is a wasteful number, since it uses less digits than its factorization.

40544505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15341 (or 15338 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 40544505 is about 6367.4567136338. The cubic root of 40544505 is about 343.5400180934.

Subtracting 40544505 from its reverse (50544504), we obtain a palindrome (9999999).

The spelling of 40544505 in words is "forty million, five hundred forty-four thousand, five hundred five".